The set of the switch's member ports for the bridge group. A port may reside within multiple bridge groups only if the object bridgeGroupAllowMembershipOverlap has been set to enabled(1). This object cannot be used to configure bridge group membership. The table bridgeGroupMemberTable is used for that purpose. Each octet within the value of this object specifies a set of eight ports, with the first octet specifying ports 1 through 8, the second octet specifying ports 9 through 16, etc. Within each octet, the most significant bit represents the lowest numbered port, and the least significant bit represents the highest numbered port. Thus, each port of the bridge group is represented by a single bit within the value of this object. If that bit has a value of '1' then that port is included in the set of ports; the port is not included if its bit has a value of '0'. Initially, a single bridge group with all ports as its members is defined.